Question 1

The PERT technique assumes that durations are more deterministic.

Accepted Answer

A) True 
 B)False  False

Question 2

Activity Z has estimates a = 5, b = 12, m = 7; activity X has estimates a = 5, b = 11, m = 6; and activity Y has estimates a = 3, b = 11, m = 8. Which of the following statements is BEST?

Accepted Answer

A)   Activity X is longer than Activity Y.
B)   Activity X has a higher standard deviation than Activity Z.
C)   Activity Z is shorter than Activity Y.
D)   Activity Y has a smaller variance than Activity Z. C

Question 3

-Use the network diagram and activity lengths in the nodes to determine the late start time for activity F.

Accepted Answer

A)   21
B)   24
C)   26
D)   23 D

Question 4

Burst activities are those with two or more successor activities.

Accepted Answer

A) True 
 B)False

Question 5

-Use the network diagram and activity lengths in the nodes to determine the early start time for activity D.

Accepted Answer

A)   8
B)   13
C)   14
D)   21

Question 6

-Based on the activity network pictured, what is the BEST statement?

Accepted Answer

A)   Activity C is a burst activity.
B)   Activity E has one predecessor, Activity B.
C)   Activity A and Activity C are merge activities.
D)   There are no serial activities in this network.

Question 7

An MBA student laboriously calculated the early and late start times and early and late finish times for all of the activities contained in this simple six activity project. Unfortunately, some of the information was washed away by lachrymal fluid. Kindly restore the table to its former glory by filling in the missing information.

Accepted Answer

The answer of An MBA student laboriously calculated the early...

Question 8

An activity has an optimistic time estimate of 12 days, a most likely estimate of 16 days, and a pessimistic estimate of 22 days. What is the expected standard deviation of the activity?

Accepted Answer

A)   Between 1 and 2 days
B)   Between 2 and 3 days
C)   Between 3 and 4 days
D)   Between 4 and 5 days

Question 9

Preceding activities are those that must occur before others can be done.

Accepted Answer

A) True 
 B)False

Question 10

Use the information in the table to determine the late start time for Activity E.

Accepted Answer

A)   Day 23
B)   Day 26
C)   Day 32
D)   Day 17

Question 11

What is the slack time for Activity D given the activity times and precedence requirements shown in the table?

Accepted Answer

A)   2
B)   1
C)   0
D)   3

Question 12

What is the late start time for Activity E given the activity times and precedence requirements shown in the table?

Accepted Answer

A)   14
B)   15
C)   16
D)   17

Question 13

Concurrent activities are:

Accepted Answer

A)   Activities that must be done one after the other.
B)   Activities that can be performed at the same time.
C)   Activities that use labor from the same group of workers.
D)   Activities that use resources from the same resource pool.

Question 14

A project has the precedence requirements and activity durations shown in the table. After he draws the network, the project manager decides that activities B, C, and D can be represented by a hammock activity. What are the early start and late finish times associated with this hammock activity?

Accepted Answer

A)   11, 30
B)   7, 24
C)   11, 24
D)   7, 36

Question 15

In assigning a value for the most pessimistic (b) duration, the project manager should estimate the duration of the activity to have a 99% likelihood that it will take b or less amount of time.

Accepted Answer

A) True 
 B)False

Question 16

-Use the network diagram and activity lengths in the nodes to determine the early finish time for activity G.

Accepted Answer

A)   26
B)   25
C)   24
D)   23

Question 17

What is the late finish time for Activity D given the activity times and precedence requirements shown in the table?

Accepted Answer

A)   14
B)   13
C)   12
D)   11

Question 18

A backward pass is performed when it is necessary to undo some work that has been performed in order to complete it properly.

Accepted Answer

A) True 
 B)False

Question 19

-Use the network diagram and activity lengths in the nodes to determine the late finish time for activity C.

Accepted Answer

A)   12
B)   13
C)   14
D)   15

Question 20

Use the information in the table to determine the late finish time for Activity B.

Accepted Answer

A)   Day 17
B)   Day 20
C)   Day 23
D)   Day 26

Exam 9: Project Scheduling: Networks, Duration Estimation, and Critical Path

The PERT technique assumes that durations are more deterministic.

Activity Z has estimates a = 5, b = 12, m = 7; activity X has estimates a = 5, b = 11, m = 6; and activity Y has estimates a = 3, b = 11, m = 8. Which of the following statements is BEST?

-Use the network diagram and activity lengths in the nodes to determine the late start time for activity F.

Burst activities are those with two or more successor activities.

-Use the network diagram and activity lengths in the nodes to determine the early start time for activity D.

-Based on the activity network pictured, what is the BEST statement?

An activity has an optimistic time estimate of 12 days, a most likely estimate of 16 days, and a pessimistic estimate of 22 days. What is the expected standard deviation of the activity?

Preceding activities are those that must occur before others can be done.

Use the information in the table to determine the late start time for Activity E.

What is the slack time for Activity D given the activity times and precedence requirements shown in the table?

What is the late start time for Activity E given the activity times and precedence requirements shown in the table?

Concurrent activities are:

A project has the precedence requirements and activity durations shown in the table. After he draws the network, the project manager decides that activities B, C, and D can be represented by a hammock activity. What are the early start and late finish times associated with this hammock activity?

In assigning a value for the most pessimistic (b) duration, the project manager should estimate the duration of the activity to have a 99% likelihood that it will take b or less amount of time.

-Use the network diagram and activity lengths in the nodes to determine the early finish time for activity G.

What is the late finish time for Activity D given the activity times and precedence requirements shown in the table?

A backward pass is performed when it is necessary to undo some work that has been performed in order to complete it properly.

-Use the network diagram and activity lengths in the nodes to determine the late finish time for activity C.

Use the information in the table to determine the late finish time for Activity B.